OSCust.exe win32:Trojan-gen (other)

[dema]

The log looks clean to my untrained brain.

However, there are a number of "023" (services) entries for which the log states "file missing", a few too many for that to be normal.
I don't actually know the import of that..sometimes when software has been incorrectly removed it can leave such an entry behind, but a lot of yours seem to belong to the OS.
Might pay to wait till someone more expert can analyze that.

Would it be safer to just have a complete clean install on my computer, I still have the software cds it came with.

[Tarq57]

If you are happy to format and reinstall, and you'd feel better as a result, shy not.
I don't know that it is required, though.
Why not wait and see what a few others say?

If you do decide to reinstall, make sure you save your wanted files,
and maybe save the installers (latest) for security software to a clean flash drive so that you can install the AV etc before connecting to the net.

[YoKenny]

I do not see the need to do a fresh install but you need to un-install the vulnerable Adobe\Reader 8.0 and install the latest update.

Go to Start then enter windows update then Change settings then select Install updates automatically (recommended) or at least Check for updates but do not download them nor install them

Vista SP2 is available.

Run Secunia Online Software Inspector to see what applications are vulnerable:
http://secunia.com/vulnerability_scanning/online